Term:
Tertiary venation
Tertiary venation
Definition:
The third degree or third smallest veins in a leaf blade, arising from the secondary veins.
The third degree or third smallest veins in a leaf blade, arising from the secondary veins.
Glossary Details:
Title: Venation features of the black oak. Photo by S. A. Mori.
Description: Venation features of Quercus velutina based on an unvouchered plant growing at the Alamo, San Antonio, Texas. This species has craspedodromous leaf venation.